Invoking Jython from Python (or Vice Versa)

Question

I'm working on a framework right now, part of which requires Jython. I just added some plotting to it using MatPlotLib, without realizing that MatPlotLib is incompatible with Jython. Since these two parts are pretty isolated, and I would be fine running most of the program in Python and passing a small amount of information to the Jython part (or vice versa), I was wondering if there's a simple way to do this, while maintaining the modular nature of the framework. Ideas?

I'm thinking execnet might not be a bad choice. Thoughts? – Eli Mar 15 '12 at 22:00 — Eli, Mar 15 '12 at 22:00

score 11 · Accepted Answer · answered Mar 22 '12 at 19:15

I have not used execnet for anything serious, but it seems quite possible that it is a good choice for you. execnet is a Python library for distributed execution across version, platform, and network barriers.

It is not hard to get started. This simple Jython script (that invokes NumPy) worked for me without a hitch:

import execnet

gw = execnet.makegateway("popen//python=python")
channel = gw.remote_exec("""
    from numpy import *
    a = array([2,3,4])
    channel.send(a.size)
""")

for item in channel:
    print item

Output:

The documentation includes an example that goes in the opposite direction (a CPython interpreter connecting to a Jython interpreter).

execnet is no longer actively developed. https://github.com/pytest-dev/execnet. — mzjn, Mar 22 '20 at 09:31

score 0 · Answer 2 · answered Mar 16 '12 at 14:18

0

Didn't use MatPlotLib with execnet ...

But ...

For a quick tryout with execnet (on a win32 platform) you can use PortablePython2.7.2.1

PortablePython contains the MatPlotLib and is easy to install (and remove)

answered Mar 16 '12 at 14:18

Blauohr

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Invoking Jython from Python (or Vice Versa)

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